I had this idea for a engi wep:
the lasso (need better name)
it replaces shotgun or pistol (dunno yet), and can be used to pull players ... meters.
this may sound like: "What the f*ck is good about that?!" but imagine:
scenario 1: A scout knows the position of your sentry and has been killing teammates without getting near it, u are getting pretty pissed. Then u get the lasso and pull him behind a corner into the view of your sentry. *BLABLABLAAAAAM* "AARGH".... And no more scout

scenario 2: A medic and heavy are coming with an uber. The sentries won't survive Oh no! But, as soon as the medic deploys his uber, you grab A: the medic, making the heavy lose his uber and dieing. B: the heavy, making the uber completely wasted.

EDIT: scenario 3: A scout uses Bonk! to jump over ur sentry and get shot to ur last cap. that isn't right! ur sentry's helping him! but just use ur Lasso to grab him and pull him back. Bonk! works out. *BLABLABLAAAAAM* "AARGH".... And no more scout

I know it still needs a lot of balancing, like 15 sec recharge time or something
Just was wondering what u might think of it.